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Topic: Oculomotor nerve

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Trochlear nerve

Cranial nerves

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	Pupil constriction - Wikipedia, the free encyclopedia
		It is the normal response of the pupil of the eye to light and dependent on the function of the optic nerves and oculomotor nerves.
		The oculomotor nerve is responsible for the efferent limb of the pupillary reflex; in other words, it drives the muscles that constrict the pupil.
		Oculomotor nerve axons synapse on ciliary ganglion neurons whose axons innervate the constrictor muscle of the iris.
	en.wikipedia.org /wiki/Pupil_constriction (384 words)

	Oculomotor nerve - Wikipedia, the free encyclopedia
		The oculomotor nerve arises from the anterior aspect of mesencephalon (midbrain).
		The fibers of the oculomotor nerve arise from a nucleus in the midbrain, which lies in the gray substance of the floor of the cerebral aqueduct and extends in front of the aqueduct for a short distance into the floor of the third ventricle.
		On emerging from the brain, the nerve is invested with a sheath of pia mater, and enclosed in a prolongation from the arachnoid.
	en.wikipedia.org /wiki/Oculomotor_nerve (795 words)

	IX. Neurology. 1F. The Abducent Nerve. Gray, Henry. 1918. Anatomy of the Human Body. (Site not responding. Last check: 2007-11-06)
		From the nucleus of the sixth nerve, fibers are said to pass through the medial longitudinal fasciculus to the oculomotor nerve of the opposite side, along which they are carried to the Rectus medialis.
		The abducent nerve is joined by several filaments from the carotid and cavernous plexuses, and by one from the ophthalmic nerve.
		Below the optic nerve are the inferior division of the oculomotor, and the abducent, the latter lying on the medial surface of the Rectus lateralis.
	www.bartleby.com /107/201.html (619 words)

	THE MERCK MANUAL, Sec. 14, Ch. 178, Neuro-Ophthalmologic And Cranial Nerve Disorders
		One identifiable cause is compression of the 6th nerve in the cavernous sinus by a tumor originating in the nasopharynx.
		Thus 6th nerve palsies may be due to large brain tumors remote from the nerve, to increased intracranial pressure, or to lumbar puncture.
		The mechanism presumably involves swelling of the nerve due to immune or viral disease, with ischemia and compression of the facial nerve in the narrow confines of its course through the temporal bone.
	www.merck.com /mrkshared/mmanual/section14/chapter178/178c.jsp (2010 words)

	eMedicine - Oculomotor Nerve Palsy : Article Excerpt by: James Goodwin, MD (Site not responding. Last check: 2007-11-06)
		Fascicular intraparenchymal midbrain portion: The fascicular portion of the oculomotor nerve courses ventrally from the nucleus in the dorsal midbrain tegmentum, passes through the red nucleus, and emerges from the medial aspect of the cerebral peduncle.
		Fascicular subarachnoid portion: The cisternal portion of the nerve is in the subarachnoid space anterior to the midbrain and in close proximity to the posterior communicating artery.
		Berry aneurysm at the junction between the posterior communicating artery and the internal carotid artery is an important cause of oculomotor nerve palsy.
	www.emedicine.com /oph/byname/oculomotor-nerve-palsy.htm (623 words)

	EXTRAOCULAR MUSCLES (Site not responding. Last check: 2007-11-06)
		Nerve Supply-By the inferior division of oculomotor nerve.
		Nerve supply-The voluntary or upper lamella is supplied by the upper division of oculomotor nerve.
		Branches-10-12 Short ciliary nerves which supply sphincter pupillae or constrictor pupillae for the constriction of the pupil, ciliaris muscle for increasing the curvature of anterior surface of lens during accommodation of the eye.
	www.drkrishnagarg.com /q8.htm (732 words)

	The Cranial Nerves (Site not responding. Last check: 2007-11-06)
		This nerve is purely sensory and supplies the superficial and deep parts of the superior region of the face, including the eyeball, lacrimal gland, conjunctiva, nasal mucosa, and the skin of the scalp, forehead, upper eyelid, and nose.
		From the nerve; nerve to medial pterygoid, tensor tympani and tensor veli palatini.
		This nerve is the means whereby movements of the eyes and head are linked with the part of the membranous labyrinth that governs the appreciation of the body in space.
	www.geocities.com /medinotes/crnialnn.htm (2220 words)

	The Barrow Quarterly Article 12-2-1 (Site not responding. Last check: 2007-11-06)
		In contrast, the oculomotor and trochlear nerves as well as the ophthalmic and maxillary branches of the trigeminal nerve pass between the superficial and deep layers of the lateral cavernous sinus wall.
		This triangle is bounded by the greater superficial petrosal nerve medially, the posterior aspect of the mandibular division of the trigeminal nerve anteriorly, and by a line between the foramen spinosum and the arcuate eminence of the petrous bone posteriorly.
		The landmarks for this area in the middle fossa are the posterior border of the mandibular division of the trigeminal nerve anteriorly, the arcuate eminence posteriorly, the greater superficial petrosal nerve laterally, and the petrous ridge with the superior petrosal sinus medially.
	www.emergemd.com /bniq2/article.asp?article_ref_id=12-2-1 (4603 words)

	ocular_palsies (Site not responding. Last check: 2007-11-06)
		of the third (oculomotor) nerve is situated in the mid-brain at the level of the superior colliculus, inferior to the sylvian aqueduct.
		The nerve then passes between the posterior cerebral artery and the superior cerebellar artery, running lateral to and parallel with the posterior communicating artery because the nerve traverses the base of the skull unaccompanied by any other cranial nerves, isolated third nerve palsies are frequently basilar.
		Neuro-anatomy: The nucleus of the sixth (abducens) nerve lies in the midpoint of the pons, inferior to the floor of the fourth ventricle, where it is closely related to the fasciculus of the seventh nerve.
	www.thamburaj.com /ocular_palsies.htm (3031 words)

	Oculomotor Nerves (III) (Site not responding. Last check: 2007-11-06)
		"Oculomotor nerves" arise from the midbrain and pass into the orbits of the eyes.
		One part of each nerve connects several voluntary muscles: the "levator palpebrae superioris" muscles, which raise the eyelids, and most of the muscles attached to eye surfaces that cause them to move - the "superior rectus", "medial rectus", and "inferior oblique" muscles.
		They are number "III" in the cranial nerve order from the front of the brain.
	www.innerbody.com /text/nerv28.html (121 words)

	eMedicine - Oculomotor Nerve Palsy : Article by James Goodwin, MD (Site not responding. Last check: 2007-11-06)
		The tremor and ataxia is ipsilateral to the lesion and to the third cranial nerve palsy.
		Fourth cranial nerve palsy is difficult to diagnose in the presence of third cranial nerve palsy because the small increment of depressor deficit (superior oblique muscle) cannot be discerned readily from the depressor palsy that results from weakness of the third nerve innervated depressor (inferior rectus muscle).
		Patients with third cranial nerve palsy from identifiable diseases such as infectious or neoplastic meningeal infiltration, or berry aneurysm have varying prognosis depending on a myriad of factors that are beyond the scope of this article.
	www.emedicine.com /oph/topic183.htm (5085 words)

	You've Got Some Nerve! A Review of Cranial Nerves Part III - Oculomotor Nerve - NeuroBasics (Site not responding. Last check: 2007-11-06)
		The nerve fibers of the somatic motor component of the oculomotor nerve originate in the oculomotor nuclear complex in the brain stem.
		The nerve fibers that originate from this nucleus are preganglionic parasympathetic fibers that innervate the cilliary ganglion located in the posterior part of the orbit.
		The action of the ciliary nerves on the constrictor pupillea causes this muscle to constrict and reduces the size of the lense in response to the intensity of the light entering the eye.
	home.earthlink.net /~electrikmonk/Neuro/artNerveIII.htm (595 words)

	Oculomotor Nerve (Site not responding. Last check: 2007-11-06)
		The oculomotor nerve originates from motor neurons in the oculomotor (somatomotor) and Edinger-Westphal (visceral motor) nuclei in the brainstem.
		Nerve cell bodies in this region give rise to axons that exit the ventral surface of the brainstem as the oculomotor nerve.
		The nerve passes through the two layers of the dura mater including the lateral wall of the cavernous sinus and then enters the superior orbital fissure to access the orbit.
	www.meddean.luc.edu /lumen/MedEd/GrossAnatomy/h_n/cn/cn1/cn3.htm (171 words)

	ABDUCENT NERVE (Site not responding. Last check: 2007-11-06)
		This is a fibrous band connecting the lateral margin of the dorsum sellae to teh upper border of the petrous part of the temporal bone near its medial end.
		It remains as a separate funiculus and distally in the enterior cavernous sinus it leaves the abducent nerve to be redistributed mainly to the first division of the V th nerve.
		Tension on the VI nerve as it straddles the petrous bone.
	manidr.enmail.com /6_nerve.htm (761 words)

	Intracranial nerve repair...
		In rats, the oculomotor nerve was sectioned and the nerve stumps were coapted with plasma clot.[26] Functional recovery of the nerve was assessed by measurements of the pupillary diameter and the ocular displacement evoked by vestibular stimulation.
		Two cases of oculomotor nerve repairs were reported in the series by Sekhar, et al.[79] In the first case, an end-to-end nerve repair was performed with sutures and fibrin glue.
		Nine cases of abducens nerve repair were described by Sekhar, et al.[79] End-to-end repair was performed in three nerves; functional recovery was complete in one case, good in the second, and poor but similar to the preoperative state in the third case.
	www.c3.hu /~mavideg/jns/1.2.2.html (5697 words)

	The Orbit and Ear
		The rest of the orbital cavity is filled with orbital fat, muscles of the eyeball, the eyeball, the lacrimal gland, ophthalmic artery and its branches, and the ophthalmic vein and its tributaries.
		The infraorbital nerve is a branch of the maxillary division (V2) of the trigeminal nerve.
		Consider that the lower division of the oculomotor nerve (III) carries parasympathetic nerve fibers to the ciliary ganglion where they synapse on second neurons that travel as the short ciliary nerves to constrictor muscles of the pupil.
	mywebpages.comcast.net /wnor/lesson3.htm (1174 words)

	Comparative Ophthalmology Notes: Chapter 14 - Neuro-ophthalmology (Site not responding. Last check: 2007-11-06)
		Because the iris also is innervated by the oculomotor nerve, pupillary abnormalities also may occur.
		Oculomotor nerve palsy and dilated pupil : Lesion could be intraorbital or intracranial.
		Alcohol block of the auriculopalpebral branch of the facial nerve may control the eyelid spasm; if entropion occurs, corrective surgery may be necessary.
	www.vetmed.ucdavis.edu /courses/vet_eyes/conotes/con_chapter_14.html (1044 words)

	Definitions (Site not responding. Last check: 2007-11-06)
		nerves, that serve to conduct sensory stimuli from the olfactory organ to the
		Tingling is an indication of damage or irritation to the nerves in that area.
		by the nerve, because impulses to the area are blocked.
	www.dickibus.co.uk /teamwork/definitions.htm (1785 words)

	Neuroscience for Kids - Cranial Nerves
		Some of these nerves bring information from the sense organs to the brain; other cranial nerves control muscles; other cranial nerves are connected to glands or internal organs such as the heart and lungs.
		Note: the olfactory "nerve" is composed of the rootlets of olfactory hair cells in the nasal mucosa and is not visible on the ventral surface of the brain.
		To test the motor part of the nerve, tell your partner to close his or her jaws as if he or she was biting down on a piece of gum.
	faculty.washington.edu /~chudler/cranial.html (785 words)

	[No title] (Site not responding. Last check: 2007-11-06)
		Demonstrate the continuity of the supraorbital and supratrochlear nerves with the frontal nerve.
		This muscle, which is innervated by the oculomotor nerve, is responsible for opening the eyelid.
		Trace the oculomotor nerve from the point at which it enters the dura, through the superior orbital fissue and into the orbit.
	www.umanitoba.ca /faculties/medicine/anatomy/disjv17.htm (1326 words)

	Mydriatic Pupil as the Presenting Sign of Common Carotid Artery Dissection -- Koennecke and Seyfert 29 (12): 2653 -- ...
		Permanent oculomotor palsy with occlusion of the internal carotid artery.
		Transient oculomotor paresis associated with acute internal carotid artery occlusion.
		Ocular motor nerve palsies in spontaneous dissections of the cervical internal carotid artery.
	stroke.ahajournals.org /cgi/content/full/29/12/2653 (1424 words)

	Vestibuloocular Reflex of the Adult Flatfish. III. A Species-Specific Reciprocal Pattern of Excitation and Inhibition ...
		penetrated in the oculomotor and the trochlear nucleus.
		A total of 102 extraocular motoneurons was recorded in the trochlear, oculomotor, and abducens nuclei.
		Baker R, Precht W, and Berthoz A. Synaptic connections to trochlear motoneurons as determined by individual vestibular nerve branch stimulation in the cat.
	jn.physiology.org /cgi/content/full/86/3/1376 (6699 words)

	Oculomotor nerve Oculomotor nerve, Patient Assistance Programs, Prescription Drug Programs, Free Medicine Plan, Free ... (Site not responding. Last check: 2007-11-06)
		Oculomotor nerve: The oculomotor nerve is the third cranial nerve.
		(The cranial nerves emerge from or enter the cranium, the skull, as opposed to the spinal nerves which emerge from the vertebral column).
		Paralysis of the oculomotor nerve results in drooping eyelid (ptosis), deviation of the eyeball outward (and therefore double vision) and a dilated (wide-open) pupil.
	www.freeprescriptiondrugprogram.com /healthcare/Oculomotor+nerve (314 words)

	Arch Neurol -- Abstract: Levator-sparing oculomotor nerve palsy caused by a solitary midbrain metastasis, February ...
		Arch Neurol -- Abstract: Levator-sparing oculomotor nerve palsy caused by a solitary midbrain metastasis, February 1984, Keane et al.
		Levator-sparing oculomotor nerve palsy caused by a solitary midbrain metastasis
		the caudal central oculomotor subnucleus and its outflow fibers.
	archneur.ama-assn.org /cgi/content/abstract/41/2/210 (99 words)

	MedlinePlus Medical Encyclopedia: Cranial mononeuropathy III - diabetic type
		Cranial mononeuropathy III is a complication of diabetes caused by damage to the third cranial nerve, which leads to double vision and eyelid drooping,
		It involves the third cranial (oculomotor) nerve, which is one of the cranial nerves that controls eye movement.
		In some cases, it may not be clear if the nerve damage is due to diabetes or some other cause such as an aneurysm.
	www.nlm.nih.gov /medlineplus/ency/article/000692.htm (452 words)

	oculomotor_nerve - OneLook Dictionary Search
		oculomotor nerve : The American Heritage® Dictionary of the English Language [ home, info ]
		Phrases that include oculomotor nerve : inferior branch of oculomotor nerve, nucleus of oculomotor nerve, sulcus of the oculomotor nerve, superior branch of the oculomotor nerve, dorsal nucleus of oculomotor nerve, more...
		Words similar to oculomotor nerve : oculomotor, more...
	www.onelook.com /?w=oculomotor_nerve&loc=resrd (267 words)

	Arch Ophthalmol -- Abstract: Pupil Involvement in Patients With Diabetes-Associated Oculomotor Nerve Palsy, June 1998, ... (Site not responding. Last check: 2007-11-06)
		Arch Ophthalmol -- Abstract: Pupil Involvement in Patients With Diabetes-Associated Oculomotor Nerve Palsy, June 1998, Jacobson 116 (6): 723
		oculomotor nerve palsy occurs more often than has been previously
		from injury of the oculomotor nerve caused by aneurysmal compression.
	archopht.ama-assn.org /cgi/content/abstract/116/6/723 (202 words)

	superior branch of the oculomotor nerve - OneLook Dictionary Search (Site not responding. Last check: 2007-11-06)
		We found 2 dictionaries with English definitions that include the word superior branch of the oculomotor nerve :
		Tip: Click on the first link on a line below to go directly to a page where "superior branch of the oculomotor nerve" is defined.
		Additional searches for superior branch of the oculomotor nerve...
	www.onelook.com /?w=superior+branch+of+the+oculomotor+nerve&ls=a (114 words)

	sulcus of the oculomotor nerve - OneLook Dictionary Search (Site not responding. Last check: 2007-11-06)
		We found 2 dictionaries with English definitions that include the word sulcus of the oculomotor nerve :
		Tip: Click on the first link on a line below to go directly to a page where "sulcus of the oculomotor nerve" is defined.
		Additional searches for sulcus of the oculomotor nerve...
	www.onelook.com /?w=sulcus+of+the+oculomotor+nerve&ls=a (110 words)

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